Two atoms respectively have Z=12, A=26 and Z=14, A=26. Can these two atoms be classified as isotopes of the same element?

Why does Caesium have the largest atomic radius?

What can you predict from an element's location on the periodic table? it's properties it's chemical name it's chemical symbol when it was discovered

Any naturally occurring, inorganic, crystalline substance with a fairly definite chemical composition is called a

If a chemical reaction uses up energy the reaction is

Which of the following is an example of a buffer? hemogoblin salt metal plasma

Water has a specific heat of 4184 J / (kgK) how much energy is needed to increase the temperature os a kilogram of water 5C?

A student noticed while doing the neutralization experiment that the calorimeter kept getting warmer. how would this error affect the final calculation for the δhneut of each reaction? would it be overestimated, underestimated or remain unaffected?

A solution contains 45 grams of nitrogen gas and 40 grams of argon. What is the mole fraction of argon in this solution?

How is an animal cell related to tissue and organs

Predict the precipitate produced by mixing an Al (NO3) 3 solution. write the net ionic equation for the reaction. include the states of matter